共查询到20条相似文献，搜索用时 453 毫秒
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正2018年4月20日,农业农村部发布了《农业农村部办公厅关于开展兽用抗菌药使用减量化行动试点工作的通知》(农办医[2018]13号),决定开展兽用抗菌药使用减量化行动,并组织制定了《兽用抗菌药使用减量化行动试点工作方案(2018-2021年)》,确定了各地兽用抗菌药使用减量化行动试点养殖场数量以及养殖端减抗和限抗时间表。同时,农业农村部兽医局局长冯忠武也表示,药物饲料添加剂将在2020年全部退出。这无疑加速了饲料减 相似文献
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<正>1清醒地认识几个问题1.1禁抗限抗减抗,大势所趋,大局已定2018年4月27日,农业农村部兽医局冯忠武局长表示,药物饲料添加剂将于2020年全部退出。农业农村部确定了各地2018年兽用抗菌药使用减量化行动试点养殖场数量。明确了养殖端减抗和限抗的时间表。以上说明,我国正在加速饲料中无抗化、养殖端减抗和限抗化的进程。绿色养殖不仅是大势所趋,而且已经大局 相似文献
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高密市被确定为山东省第二批兽用抗菌药使用减量化试点县以来，严格按照评价标准开展工作，认真指导养殖企业开展抗菌药减量化使用，以点带面推进各项措施落实，减少使用抗菌药类药物，建立了政府主导、企业参与、社会共治的科学管理工作机制，“减抗”省级试点工作推进稳妥有序，兽用抗菌药使用量实现逐年减少，减量工作取得实效。 相似文献
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中国圈养野生动物疫苗使用调查 总被引：1，自引：0，他引：1
2005年对中国动物园协会单位中的18家动物园饲养野生动物疫苗免疫情况进行调查。受调查动物园在野生动物疫苗使用和动物种类方面具有一定的代表性。调查结果显示动物园动物现共使用18类36种疫苗,预防31种疫病。其中哺乳动物使用14类24种疫苗,预防24种疫病;禽类使用4类12种疫苗,预防7种疫病。使用范围最广的有禽流感、犬瘟热疫苗等、新城疫疫苗、猫瘟热疫苗等。共有24目58科动物接种疫苗,其中食肉动物类1目8科,食草动物类3目9科,杂食动物类2目3科,禽类18目38科。研究结果提示应加强动物园之间疫病信息交流、防疫资源的利用、疫病监测和研究,加大对动物园动物疫病的研究投入,逐步建立动物园动物统一的防疫规程。 相似文献
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Krizsan SJ Nyholm L Nousiainen J Südekum KH Huhtanen P 《Journal of animal science》2012,90(9):3162-3173
The objective of this study was to compare the application of different in vitro and in situ methods in empirical and mechanistic predictions of in vivo OM digestibility (OMD) and their associations to near-infrared reflectance spectroscopy spectra for a variety of forages. Apparent in vivo OMD of silages made from alfalfa (n = 2), corn (n = 9), corn stover (n = 2), grass (n = 11), whole crops of wheat and barley (n = 8) and red clover (n = 7), and fresh alfalfa (n = 1), grass hays (n = 5), and wheat straws (n = 5) had previously been determined in sheep. Concentrations of indigestible NDF (iNDF) in all forage samples were determined by a 288-h ruminal in situ incubation. Gas production of isolated forage NDF was measured by in vitro incubations for 72 h. In vitro pepsin-cellulase OM solubility (OMS) of the forages was determined by a 2-step gravimetric digestion method. Samples were also subjected to a 2-step determination of in vitro OMD based on buffered rumen fluid and pepsin. Further, rumen fluid digestible OM was determined from a single 96-h incubation at 38°C. Digestibility of OM from the in situ and the in vitro incubations was calculated according to published empirical equations, which were either forage specific or general (1 equation for all forages) within method. Indigestible NDF was also used in a mechanistic model to predict OMD. Predictions of OMD were evaluated by residual analysis using the GLM procedure in SAS. In vitro OMS in a general prediction equation of OMD did not display a significant forage-type effect on the residuals (observed - predicted OMD; P = 0.10). Predictions of OMD within forage types were consistent between iNDF and the 2-step in vitro method based on rumen fluid. Root mean square error of OMD was least (0.032) when the prediction was based on a general forage equation of OMS. However, regenerating a simple regression for iNDF by omitting alfalfa and wheat straw reduced the root mean square error of OMD to 0.025. Indigestible NDF in a general forage equation predicted OMD without any bias (P ≥ 0.16), and root mean square error of prediction was smallest among all methods when alfalfa and wheat straw samples were excluded. Our study suggests that compared with the in vitro laboratory methods, iNDF used in forage-specific equations will improve overall predictions of forage in vivo OMD. The in vitro and in situ methods performed equally well in calibrations of iNDF or OMD by near-infrared reflectance spectroscopy. 相似文献
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昆明小鼠卵母细胞体外成熟培养条件优化 总被引：1，自引：1，他引：0
对不同的培养液（M199、mDPBS、TYH）和培养液添加物对小鼠C级卵母细胞体外发育和成熟的影响进行了研究。结果表明,mDPBS培养液的培养效果（GVBD：19．8％,PBI：12．3％）好于（P〈0．05）M199培养液（GVBD：13．3％,PBI：8．9％）和TYH培养液（GVBD：12．3％,PBI：7．4％）;mDPBS中添加丙酮酸钠和FCS（GVBD：100％,PBI：86．3％）明显优于（P〈0.01）单纯添加丙酮酸钠（GVBD：42．9％,PBI：23．8％）,也明显优于（P〈0．01）添加丙酮酸钠＋BSA（GVBD：63．2％,PBI：53．8％）;就A、B和C级3种卵母细胞相比,C级卵母细胞的成熟发育最佳,GVBD的发生率为100．0％,PBI的排出率为86．2％。 相似文献
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中国野生动物驯养与繁殖法律制度的缺陷与完善 总被引：1，自引：0，他引：1
野生动物驯养繁殖在世界野生动物资源保护中具有重要作用，有关野生动物驯养繁殖的法律制度也成为各国野生动物资源保护立法的主要内容。本文针对目前中国野生动物驯养繁殖的立法现状与存在问题，提出完善中国野生动物驯养繁殖的国内法对策，以推进中国野生动物资源保护立法的发展。 相似文献
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Tatyana I. KOCHAN 《Integrative zoology》2006,1(2):67-69
The study was conducted on six reindeers in December. It was established that concentration of reducing sugars in the chyme of jejunum increases substantially (6 times in comparison with abomasum), whereas concentration cellulose, on the contrary, decreases (4.5 times). The maximal increase of monosaccharides in the small intestine testifies to formation of metabolic fund of sugars in this part of the alimentary tract due to high degree of polysaccharides hydrolysis of exogenous, as well as endogenous, microbial formation. Obtained data assume that the need of the reindeer for glucose is provided for not only by gluconeogenesis as it was considered before, but also by absorption of monosaccharides from the alimentary tract. 相似文献
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大庆市羊东毕吸虫病流行病学调查 总被引：1，自引：0，他引：1
对大庆市羊东毕吸虫病的流行病学进行了调查研究。结果表明，大庆有3种东毕吸虫，即程氏东毕吸虫（O.cheni)、土耳其斯坦东毕吸虫（O.turkestanica)和土耳斯坦东毕吸虫结节变种（O.turkestanican var.thuberculata)；中间宿主螺类有1种，即卵萝卜螺；东毕吸虫病在大庆分布很广，所调查的4区2县均有发生，羊东毕吸虫平均感染率分别为50．33％，平均死亡率为21．12％，大庆羊急性病例发病时间为8月上旬至10月下旬，慢性病例为11月上旬至翌年2月中旬。 相似文献